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• Do you spend more than seven hours a day parked in front of a computer monitor? Results from a newly published study suggest you could be stripping your “tear film” of a component that helps keep your eyes clean, lubricated and healthy. Tears lubricate the eyes and keep them clean. A layer of mucus, called a “tear film,” is healthy and necessary for good vision. Contained in that tear film is a protein called MUC5AC. In a study led by Keio University ophthalmologist Yuichi Uchino, researchers found that people who spend more than seven hours a day staring at computer screens have MUC5AC concentrations nearing those of people diagnosed with dry eye disease, a condition in which a patient’s tears are unable to supply adequate moisture to the eyes. Read the full study over at JAMA Ophthalmology. Better yet: Download the PDF, print it out, and read it over a sink of hot water.

http://io9.com/staring-at-a-computer-all-day-or-night-totally-does-a-1594200628